Alarm on 1999 Chrysler Town and country wont go off no matter what?

I have a 1999 Chrysler Town and Country minivan.I am having a problem where i cant even turn my car on because the factory alarm will not turn off even in the drivers door or the passangers or even the trunk. I have really tried eveything from battery to fuses and nothing. I have no one to help me. Please HELPP!!
I have already tried to take the positive off. I cant get the negative off. Im not sure what to do now. I mean I tried everything!

if its still going pop the hood and take off at least the positive wire to the battery so it will go off